[READY] v2.0: Support DSA and ECDSA signing keys #379

Job	Run time
rubocop	10s
Unit test (ubuntu-20.04, 3)	1m 43s
Unit test (ubuntu-20.04, 3.1)	1m 46s
Unit test (ubuntu-20.04, 3.2)	1m 50s
Unit test (ubuntu-20.04, 3.3)	1m 44s
Unit test (ubuntu-20.04, jruby-9.4)	2m 29s
Unit test (ubuntu-20.04, truffleruby)	3m 45s
Unit test (macos-latest, 3)	1m 34s
Unit test (macos-latest, 3.1)	2m 2s
Unit test (macos-latest, 3.2)	1m 37s
Unit test (macos-latest, 3.3)	1m 41s
Unit test (macos-latest, jruby-9.4)	2m 8s
Unit test (macos-latest, truffleruby)	2m 33s
Unit test (windows-latest, 3)	3m 23s
Unit test (windows-latest, 3.1)	3m 21s
Unit test (windows-latest, 3.2)	3m 21s
Unit test (windows-latest, 3.3)	5m 1s
finish	2s
	40m 10s

Provide feedback